Rock-drill.



PATENTED FEB. 13, 1906.

G. J. SMITH. ROCK DRILL.

APPLICATION FILED SEPT. 2, 1905.

INVENTOI? dariacffimzia WITNESSES."

ATTORNEYS 11118517111111) sevens PAT OFFICE.

(LARK .1. SMITH. ()F ()'ITU.\I\VA. IOWA, ASSIGNOR TO THE HARDSOGG WOXlHCli DRILL COMPANY. OF OTTUMWA, IOWA,

ROCK-DRILL.

. Original application filed August 12, 1905, Serial 1%.

To all 1117mm 7])(111/ concern;

Be it known that I, CLARK J. SMITH, residing at ()ttun'iwa, in the county of Ottumwa and State of Iowa, have invented certain new and useful Improvements in Rock-Drills, of which the following is a specification.

My invention relates to certain new and useful improvements in rock-drills of the type disclosed in my copending application, Serial No. 273,930, filed August 12, 1905; and it particularly seeks to provide an improved mount for the drill so arranged that the oper ative mechanism of the drill can be swung clear of the drill and drill-aperture when it is desired to change bits; and this application forms a divisional partof my eopending application hereinbefore referred to, and I make no claim in this application to the drillstructure and drill-feeding devices, as the same per 86 form a part of my copending application before referred to.

' With other objects in view than have been heretofore enumerated the invention also Comprises certain novel construction, operation, combination, and arrangen'ient of parts, all of which will be first described in detail Specification of Letters Patent.

273,930. Divi .d and this application filed September 2,1905. Serial 110.276.2376.

and then specifically pointed out in the appended claims, reference being had to the accompanying drawings, in which Figure 1 is a perspective view showing my invention applied for use. Fig. 2 is a similar view showing the position of the parts just after the mechanism has been swung clear of the drill to pull the drill out of the hole to change drills. Fig. 3 is a cross-section through the clamp member.

Referring now to the accompanying drawings, in which like numerals of reference indicate like parts in all of the figures, 1 designates the hanliner-casing, which carries the drill Z5 and is of the type disclosed in my copending application ljiereinbefore referred to,'the easing 1. having a piston5 screwed thereto, which piston moves in the pistoncasing 9, which terminates in the center 9, as shown.

11 designates the air-supply pipe for the pistoi'i-easing 9, which is controlled by the valve 12, and the air supp ied to the drill-casing 1, controlled by the valve 6. The piston 53', whereby it can be screwed into the pis- 5 has a nut portion 5 and a threaded portion Patented Feb. 13, 1906.

ton-casing 9 to hold the drill-casing and piston-easing locked together, as set out in my eopending application before referred to.

The drill-easing 9 can be turned on its longi-- tudinal'axis by the arms 1 1', as shown. The rear end of'the easing 9 is formed with a center 9" to abut a fixed support when the drill is to be used unmounted.

13 designates a clamp screwed to the easing 9 by a bolt 13, which clamp has a wing 13', provided with a lug 13, as shown, to be received between the cats 15 of the clamp member to which'it is secured by the bolt 14,

as shown, the connection between the wing 13 and the clamp member 15 being such as to permit the clamp 13 being swung on the bolt 14 when in one direction, as shown.

The clamp 15 has a bearing portion 15 to fit into the socket portion of a clamp 16, which is held thereon by a bolt 17, as shown, and the clamp 16 is in the nature of a double clamp having a squared clamping portion 16 at right angles to the clamping portion 16, and the clamping portion 16 is clamped around the horizontal support 19 and held' secured by a bolt 18, as shown. The support 19 is in turn secured to a vertical support 20 by a clamp 19, as clearly shown in Figs. 1. and 2 of the drawings.

The manner in which my present invention operates is as follows: The parts are first placed in the position shown in Fig. 1 until the drill has gone into the rock as far as it can go and it is desired to change-drills. The 0 erator then shuts off the valve 12, leaving t e valve 6 open, and pulls back the casing 1 toward the casing 9 to release the drill 25 from the casing 17 He then moves the drill-easing on the pivot 14 into the position shown in Fig. 2 and out of aliinement with'the drilled aperture, after which he pulls out the drill 25, asshown in Fig. 2, the clamp portion 13 serving as a rest for the drill when pulled partially out of its aperture. A new drill of greater lengthcan be placed in the drilled aperture and the drill mechanism swung back into the position shown in Fig. and pushed into connection with the drill, so that the drilling operation can be again proceeded with in the usual manner, itbeing understood that by reason'of the connection between the clamp 13 and the member 15 the drilling-ma chine will be always swung up in the same alinement with the'hole regardless of how many changes of drills are made.

From the fore oing description, taken in connection with t e accompanying drawings,

the {combinatlon with a drill casing and a s.

drillcarried thereby, of a clamp for receiving said drill-casing, said clamp including means whereby the drill-casing can be swung clear of the drill and back again without changing the alinement of the drill casing substantially as shown and described.

2. An apparatus of the class described,

I comprisin In combination with a drillingengine an a drill detachably held therein, of a support for said engine comprising a hinged clamp member whereby the drilling-engine can be swung clear of the drill, substantially as shown and described.

3. A holder for rock-drills and the like comprising a receiving-clamp, a bearing member for receiving said clamp, and means carried by the clamp for en aging the bearing member to prevent the 0 amp being swung. out of alinement with the drilled aperture in one di rection.

4. An apparatus of the class described, comprising in combination with a rock-drilling mechanism, of a supporting-clamp adjustably secured thereto, a bearing member to which said clamp is pivotally connected to be swung on its ivot-axis in one direction substantially as s own and described.

'5. An apparatus of the class described, the

combination with the drilling mechanism, of

a clamp for receiving the same, said clamp having a wing provided with a heel, a bearing member for receiving said wing to which it is pivotally secured, a double clamp for wwwfor receiving said double clamp, a second clamp on said supporting-rod and a second supporting rod for receiving said second clamp substantially as shown and described.

6. An apparatus of the class described, com rising in combination with a drilling mec anism, of a clamp for receiving the same, said clamp having a wing provided with a heel, a bearing member for receiving said. wing to which it is pivotally secured. f

7. An apparatus of the class described, comprising in combination with a drilling mec supporting member therefor, said supporting member com rising a body portion having a pair of parallel cars and a stud portion, a clamp having a heeled wing held between the ears of the body portion, and pivotally connected thereto with its heel adapted to engage the body ortion, said clamp adapted to receive the dri ling mechanism substantially.

as shown and for the pur oses described. I

v 8. An apparatus of t e class described, comprising a rock-drill, a clamp for mounting said rock-drill in alinement with the apertureto be drilled, said clamp having means whereby said rock-drill may be swung in a direction at right angles to its longitudinal axis to move the same out of alinement with the drilled aperture, substantially as shown and,

described. M

9. A supporting mechanism for rock-drills comprising in combination with a support ing-arm, and a double clamp member secured anism, and a drill carried thereby, of a f thereto, of asupplemental supporting member held by said double clamp member "and consisting of a clamp-engaging pbrtion and a drilling-machine-receiving connected together, the (in ling-machine-receiving portion adapted to be swung on its pivot-axis, and means for limiting said movement, substantially as shown and described.

- CLARK J. SMITH. Witnesses: e

J. T. HAOKWORTH, W. A. WORK.

or'tion pivotally 

